Obviously. All the features that were rumored for this year‘s iPhone that didn’t make it will be in next years. This happens every couple years.
I remember in 2011, apple was rumored to introduce an iPhone 5 with a 3.7 inch screen instead of a 3.5, a roundEd off teardrop design, an HD front facing camera, and LTE.
Instead, we got the iPhone 4S, with a faster processor, better camera, and Siri.
Then in 2012, we got the iPhone 5 with a four-inch screen, aluminum back, LTE, HD front camera, and all that jazz.
So yeah, next year we will probably have the same design as this year, but with a slightly smaller notch, MMWave across-the-board, 120 Hz on the pro models, and a possible removal of the charging port.
This is all pretty obvious. If you buy an iPhone 12, in a year there will be a better version.